Automobile-jack



S.HEYMANN.

AUTOMOBILE JACK. APPLICATION FILED JUNE 1, 1918.

1,344,036. I zfig yj 3 SHEETS-SHEET I.

Patented June 22, 1920.

S. HEYMANN.

AUTOMOBILE JACK. APPLICATION FILED JUNE 1. 1918.

Patented J 11116 22, 1920.

3 SHEETS-SHEET 2.

S. HEYMANN.

AUTOMOBILE JACK.

APPLICATION men JUNE 1, 1918.

1,344,036. Patented June 22, 1920.

3 SHEETS-SHEET 3.

is a specification.

UNITED! STATES PATENT OFFICE.

SIDNEY HEYMANN, OF FAR ROCKAW AY, NEW YORK, ASSIGNOB OF ONE-HALF TO I PHILIP S. HEYMANN, 0F RITTSBUBGH, PENNSYLVANIA.

LUTOMOBILEJACK.

Application filed June 1,

To all whom it may concern: Be it known that I, SIDNEY HEYMANN, residing at Far Rockaway, in the county of Queens and State of New York, have in vented certain new and useful Improvements in Automobile-Jacks, of which the-following This invention relates to jacks for selfpropelled vehicles, such as automobiles, motor trucks and the like, and one of the objects is to provide a new and improved jack which" may be incorporated as a fixedv part of the machine, so that the same is always ready for use; and further, the provision of new and improved means for operating the jack-which may be ,manipu lated or controlled from the drivers seat.

Another object, of the invention is to provide operating means, such that any jack provided for any one ofthe-four wheels may be selectively operated from the drivers seat.

Other objects and aims of the invention, more or less specific than those referred to ab0ve,will be in part obvious and in part pointed out in the course of the following description of the elements, combinations,

-' arrangements of parts and applications of principles, constituting the invention; andthe scope of protection contemplated will be indicated in the appended claims.

In the accompanying drawings, wherein I have illustrated a preferred embodiment of my invention:

Figure 1 is a top plan view of my,im-'.

proved jack showing the arrangement thereof with respect to the motor vehicle.

Fig.2is a vertical sectional view showing the means foroperating the jack, certain of the parts being shown in elevation.

Fig. 3 is a vertical sectional view taken through one of the jacks, showing the manner in which the same is mounted; and

Fig. 4 is a horizontal sectional view taken on line IVIV of Fig. 3.

Referring now'to the drawings, wherein similar reference characters refer to similar parts throughout the several views thereof, and particularly to Figs. 3 and 4 of the drawings, the reference numeral 1 denotes Specification of Letters Patent.

. I Patented June 22, 1920. 1918. semi No. 237,784.,

a bearing member of cylindrical form, one side of which is provided with laterally extending arms or brackets 2 and 3, adapted to embrace one of the bars 4 of the chassis \of the motor car, said arms being clamped securely together as by means of-the clamp bolt 5 so that the bearing'member 1 is rigidly supported upon the frame of the machine so as to be a fixturethereon.

Rotatably mounted in the bearing member 1 is a sleeve 6, said'sleeve being provided with a shoulder 7 at the lower end thereof,

and with a shoulder 8 threaded upon the intermediate portion thereof, said shoulders 7 and' 8 embracin the lower and upper ends respectively of t e bearing 1, so that the sleeve 6 is rotatablymaintained in the position shown in Fig. 3; ball bearin as at 9 and 10 being provided between the s oulders and the upper and lower ends of the bearing member 1. Formed interiorly'of the sleeve 1, are screw threads 11 and meshing with these screw threads are, threads 12 provided upon the jack shaft 13, upon the lower end of which is mounted the foot piece'14 of the jack. This foot piece 14 is rotatably mounted upon the shouldered end 15 of the jack shaft 13 and is held in position as by means of a plug 16 threaded into the lower end of the foot piece. This plug and a shoulder, 17 on the foot piece embraces the shoulder 15 of the jack shaft, whereby the foot piece is rotatably mounted upon the jack shaft 13. The jack shaft 13 is provided with a longitudinally extending slot 18 which is adapted to receive a spline 19 formed upon. a bracket 20 secured as at -21 to the arm 3. This splined connection between the jack shaft 13 and the bracket 20 holds the jack shaft in a non-rotatable position during the rotation of the sleeve 6, so that when said sleeve is rotated in either direction the jack shaft will be raised or lowered with respect to its mounting. Mounted upon the upper end of the sleeve 6 is a sprocket wheel 22.

The above description pertains to each one of the several jacks which are mounted upon the frame so as to lift thewvheel nearest tbat part of the frame from the ground.

Referring now to the means for operating the several jacks,'the referencenumeral 23 denotes a suitable sourceofmotive power, for instance the electric motor which may be supplied with current from a suitable source of power, as a battery 24, the current from said battery being controlled by a switch 25.

Mounted upon the shaft 26 of the motor 23 is aspur gear 27, such spur gear being in constant driving. mesh withspur gears 28 and 29. mounted uponthe shafts 30 and 31, which are journaled in suitable bearings provided in the frame of the automobile. The inner ends of the shafts 30 and 31 are provided with bevel gears 32 and 33 respectively. By means of the above construction it will be noted that'the bevel gears 32 and 33 are driven in opposite directions by the motor 23. 34 indicates ashaft to which is splined, so as to be slidably and non-rotatably mounted thereon, a bevel gear 35, said bevel gear beingprovided with upper and lower sets of teeth 36 "and 37,.which are adapted to mesh respectivel with either of the bevel gears 32 or 33. evel gear is normally urged in ajdownward direction by means of the spring 38 which exerts its stress between the upper. surface of said bevel gear arid a fixed part of the frame.

The bevel gear 35 when in its uppermost position, as shown in Fig. 2, meshes with the teeth of the spur gear 32, and when in its lowermost position it meshes with the teeth of the bevel gear 33. It will, therefore, be seen that the spur gears 32 and 33 are adapted to drive the bevel gear '35 in opposite directions, the direction of rotation being dependent upon which of the two gears it is in mesh wlth.

40 indicates a bell-crank lever, journaled at 41 to a bracket 42 on the frame, the arm 43 of said lever being provided with an anti-friction roller 44, which is adapted to engage with the lower surface of the bevel gear 35 and hold it in the position shown in Fig. 2; a suitable catch 45 on the other arm of the lever cotiperating' with an aperture in an upright plate 46, to hold the parts in the position shown. \Vhen the upper end of the lever, 40 is swung so that the catch 45 will engage with the aperture 47 of the 7 plate 46, the spring 38 is permitted to move the bevel gear 35 downwardly so that the teeth 37 thereof will mesh with the teeth of the bevel gear 33.

The shaft 34 is formed interiorly with a 0 squared or hexagonally shaped'aperture,

through which extends a correspondingly shaped rod 48, said rod being provided with a plurality of preferably disposed grooves 49, 50, 51 and 52, and the lower end of said rod 48 is provided with a key 53.

Located underneath the end of the rod 48 are sprocket wheels 54, 55, 56 and 57, which are nested together, as shown, and adapted for independent rotation. -The lowermost of the sprocket 'wheels rests in a socket 58 provided in a bushing 59, which is threadedly mounted in a portion of the frame and is held in an adjustable position as by means of the lock nut 60. It will be observed that when the rod 48 is pushed downwardly the key 53 may be caused to engage with any one of the sprocket wheels 54 to 57 inclusive,

suitable keyways being provided in said formed grooves 49 to 52 inclusive thereo the opposite leg 64 being pivotally'connected at 65 with a link 66, which extends through a guide 67 in an aperture 68 in the handle 61, a nut 69 being provided upon the upper end of the link. The arm 64 of the bellcrank lever is spring-pressed upwardly so that the arm 63 of said lever is always urged in the direction of the rod 48.

Pivotally mounted to a strap 70, encircling the handle 61, is a lever 71, normally urged in the position shown in Fig. 2 of the drawings, by the spring 72, said lever at its inner end being provided with a plurality of teeth 73 adapted to be frictionally engaged with the rod 66 to operate the latter.

Each of the sprockets 54 to 57 inclusive, is connected with one of the sprocket wheels 22 of the jack mechanism proper, by means of chains 74.

Having thus described this embodiment of my invention, the operation thereof may now be understood:

Assuming all the acks to be in their normal positions, and the remaining arts in the position shown in Fig. 2 of the rawings, when it is desired'to operate any one of the jacks, it is merely necessary to engage the teeth 73 with the rod 66, by grasping the handles 61 and the lever 71, whereupon the arm 63 of the bell-crank lever connectediwith said rod 66, may be detracted from the groove 49, whereupon said rod may be moved downwardly and the key 53 thereof engage with any particular sprocket wheel 54 to 57inclusive, indicating marks being provided upon said rod which will advise the operator as to the particular sprocket wheel with which the key 53 is engaged. The lever 40 is then operated to engage the catch thereof in'the aperture 47 in the plate 46,'such operation causing the sprocket wheel 35 to engage withthe bevel gear wheel 33. When the motor is started, the power transmitted through the sprocket wheel 85 of the shaft 34, the rod 48' of the key 53 of the particular sprocket wheel engaged, and one of the chains 74 of the sprocket wheel upon the j ack, to the operator, will cause the sleeve 6 to be rotated, thereby causing the downward movementof the foot of the jack, by meansof the screw-threaded connection of'the sleeve 6 with the threads of-the jack'shaft 13. When the jack foot has engaged with the ground and lifted the wheel which it is designed to raise, the motor may then be stopped. It is understood that a corresponding operation may be repeated with any of the other jacks by manipulationlof the rod 48 as above described.

In fact, if desired, all the jacks may be operated in succession and the entire machine lifted from the ground.

It will accordingly be seen that I have provided a device well adapted to attain, among others,-all the aims and objects above pointed out, in an exceedingly simple and efiicient manner. A motor equipped with my invention may be at all times ready'for any emergency when tires are punctured, or wheels destroyed, whereby that part of the machine may be instantly raised from the ground so that the desired repairs of displacement may be quickly effected. -Moreover, the entire operation may be controlled or regulated from the drivers seat.

As many changes could be made in this construction without departing from the scope of the following claims, it iS, zintended that all matter contained in theabovede scription or shown in th drawing shall be interprete as illustrative only and not in a limiting sense. f

Having thus described my invention what I claim as new and desire to secure .by Letters Patent is: V

1. In apparatus of the class described, the combination with the frame Tof -a selfpropelled vehicle, with a pluralityf of jacks, there being one jack rovided for each wheel, a motor, indepen tween said motor and each of said jacks for positively and selectively operated means common to said jacks for connecting said moto with any one of said jacks.

2. In apparatus of the class de scribed,'the combination with the frame pelled vehicle, with a plurality of. jacks, there being a jack for elevating each wheel, a motor normally disconnected from each jack, and means for selectively connecting said motor with any accompanying oppositely driven b entconnectionsiberaising or lowering saldljjacksf of 'aself-promounted upon said frame 4. In a motor vehicle, in combination with I the frame thereof, of a plurality of jacks mounted-thereon, each of said 'jacks being located onsaid frame so as to elevate one of the wheels thereof, a motor, normally disconnected means for connecting said motor with said jacks, selectively operated means for connecting saidmotor with any one of said jacks through, said'connecting'means,

and means whereby said-connecting means may be caused to posi ively raise or lower said jacks.

5. In a motor vehicle,- in combination with the frame thereof, of a lurality of jacks mounted thereon, each of said jacks being located on said frame so of the wheels thereof, a motor, normally disconnected means for. connecting said 'motor with said jacks, selectively operated means for connecting saidmotor with any one of said jacks through said connecting means,

and means wherebysaid connecting means said jacks, said means being operated from the seat of t e driver.

the framethereof, of a plurality of jack shafts, a motor, a

having a plurality o sprocket wheels thereon, an adjustable bevel gear splined' to said shaft providedwith' upper and. lower sets of teeth, means for moving said movable bevel gear into mesh with either one of said oppositely driven bevel gears, sleeves rotatably mounted on the jack shafts, each pro-- vided' witha 'procket wheel, sprocket chain connections."between the said plurality of sprocket wheels and the sprocket wheels on said jack shafts, selectively operated means foroperativel connecting the motor with any one of said plurality of sprocket wheels. 7. In a motor vehicle, the combination as to elevate one plurality of pairof bevel gears' said motor, av shaft with the 'frame thereof, .of a plurality of jackshaving screw threaded shanks mounted upon said frame, one jack for each of the wheels a plurality of jack shafts,a motor, a shaft havin'ga plurality of sprocket Wheels f may becaused to positively raise or lower I adapted to be loosely mounted thereon, selectively opereted means for connecting said motor to said shaft for rotating said shaft in either a clockwise or counter clockwise direction,

5 sleeves rotatably mounted upon said ack shafts and each provided with a sprocket wheel, sprocket chain connections between the loosely mounted sprocket wheels and the sprocket Wheels on said sleeves, and selectively operated means for operetively connecting any one of said plurality of: sprockei Wheels with its shaft.

In testimony whereof I affix my signatun in the presence of two witnesses.

p SIDNEY HEYMANN. Witnesses:

L. HARDING Rooms, EMMA WEINBERG. 

